%option noyywrap
%{
#include <stdio.h>
#include <stdlib.h>

#include "syntax_tree.h"
#include "syntax_analyzer.h"

int files_count;
int lines;
int pos_start;
int pos_end;

void pass_node(char *text){
     yylval.node = new_syntax_tree_node(text);
}
%}


/***************
 TO STUDENTS: Copy your Lab1 here. Make adjustments if necessary.

 Note: don't modify the prologue unless you know what you are doing.
***************/

/* Example for you :-) */
%%
\+  { pos_start = pos_end; pos_end += 1; pass_node(yytext); return ADD; }
\- { pos_start = pos_end;pos_end++; pass_node(yytext); return SUB;}
\* { pos_start = pos_end;pos_end++; pass_node(yytext); return MUL;}
\/ { pos_start = pos_end;pos_end++; pass_node(yytext); return DIV;}
\< { pos_start = pos_end;pos_end++; pass_node(yytext); return LT;}
\<\= { pos_start = pos_end;pos_end += 2; pass_node(yytext); return LTE;}
\> { pos_start = pos_end;pos_end++; pass_node(yytext); return GT;}
\>\= { pos_start = pos_end;pos_end += 2; pass_node(yytext); return GTE;}
\=\= { pos_start = pos_end;pos_end += 2; pass_node(yytext); return EQ;}
\!\= { pos_start = pos_end;pos_end += 2; pass_node(yytext); return NEQ;}
\= { pos_start = pos_end;pos_end++; pass_node(yytext); return ASSIN;}

\; { pos_start = pos_end;pos_end++; pass_node(yytext); return SEMICOLON;}
\, { pos_start = pos_end;pos_end++; pass_node(yytext); return COMMA;}
\( { pos_start = pos_end;pos_end++; pass_node(yytext); return LPARENTHESE;}
\) { pos_start = pos_end;pos_end++; pass_node(yytext); return RPARENTHESE;}
\[ { pos_start = pos_end;pos_end++; pass_node(yytext); return LBRACKET;}
\] { pos_start = pos_end;pos_end++; pass_node(yytext); return RBRACKET;}
\{ { pos_start = pos_end;pos_end++; pass_node(yytext); return LBRACE;}
\} { pos_start = pos_end;pos_end++; pass_node(yytext); return RBRACE;}

else { pos_start = pos_end;pos_end += 4; pass_node(yytext); return ELSE;}
if { pos_start = pos_end;pos_end += 2; pass_node(yytext); return IF;}
int { pos_start = pos_end;pos_end += 3; pass_node(yytext); return INT;}
float { pos_start = pos_end;pos_end += 5; pass_node(yytext); return FLOAT;}
return { pos_start = pos_end;pos_end += 6; pass_node(yytext); return RETURN;}
void { pos_start = pos_end;pos_end += 4; pass_node(yytext); return VOID;}
while { pos_start = pos_end;pos_end += 5; pass_node(yytext); return WHILE;}

[a-zA-Z]+ { pos_start = pos_end;pos_end += strlen(yytext); pass_node(yytext); return IDENTIFIER;}
[0-9]+ { pos_start = pos_end;pos_end += strlen(yytext); pass_node(yytext); return INTEGER;}
[0-9]+\.|[0-9]*\.[0-9]+ { pos_start = pos_end;pos_end += strlen(yytext); pass_node(yytext); return FLOATPOINT;}
\[\] { pos_start = pos_end;pos_end += 2; pass_node(yytext); return ARRAY;}

[\n]+ {pos_start = 1;pos_end = 1;lines+=strlen(yytext);}
\/\*([^\*]|(\*)*[^\*\/])*(\*)*\*\/ {
          for(int i=0;i<strlen(yytext);i++){
		if(yytext[i]=='\n'){
			pos_start=1;
			pos_end=1;
			lines++;
		}
		else pos_end++;
}
}
[ \f\n\r\t\v] {pos_start = pos_end;pos_end+=strlen(yytext);}
. {return 0;}

%%
